<template>
    <div>
           <!-- 面包屑 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>商品管理</el-breadcrumb-item>
    <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
        <!-- 提示 -->
          <el-alert
    title="添加商品信息"
    type="info"
    show-icon
    :closable="false"
    center>
  </el-alert>
  <!-- 步骤条 -->
  <el-steps :space="200" :active="activeIndex-0" finish-status="success" align-center>
  <el-step title="基本信息"></el-step>
  <el-step title="商品参数"></el-step>
  <el-step title="商品属性"></el-step>
  <el-step title="商品图片"></el-step>
  <el-step title="商品内容"></el-step>
  <el-step title="完成"></el-step>
</el-steps>
<!-- tab标签 -->
<el-form :model="addForm" :rules="addFormRules" ref="addFormRef" 
 label-width="100px" label-position="top">
  <el-tabs v-model="activeIndex" :tab-position="'left'" 
  :before-leave='beforeTableave' @tab-click='tabclicked'>
    <el-tab-pane label="基本信息" name="0">
        <el-form-item label="商品名称" prop="goods_name">
            <el-input v-model="addForm.goods_name"></el-input>
        </el-form-item>
          <el-form-item label="商品价格" prop="goods_price">
            <el-input v-model="addForm.goods_price" type="number"></el-input>
        </el-form-item>
          <el-form-item label="商品重量" prop="goods_weight">
            <el-input v-model="addForm.goods_weight" type="number"></el-input>
        </el-form-item>
          <el-form-item label="商品数量" prop="goods_number">
            <el-input v-model="addForm.goods_number" type="number"></el-input>
        </el-form-item>
        <el-form-item  label="商品分类" prop="goods_cat">
        <el-cascader
            v-model="addForm.goods_cat"
            :options="catelist"
            :props="cateProps"
            @change="handleChange">
    </el-cascader>
        </el-form-item>

      
    </el-tab-pane>
    <el-tab-pane label="商品参数" name="1">
        <!-- 渲染表单Item -->
        <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
    <el-checkbox :label="cb" v-for="(cb,i) in item.attr_vals" :key="i"
    border >
    </el-checkbox>

  </el-checkbox-group>
        </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品属性" name="2">
        <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
                <el-input v-model="item.attr_vals"></el-input>
        </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品图片" name="3">
        <!-- action 图片上传的APi-->
        <el-upload
  action="http://127.0.0.1:8888/api/private/v1/upload"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
 :headers="heardersObj"
 :on-success="handleSuccess"
  list-type="picture">
  <el-button size="small" type="primary">点击上传</el-button>
  
</el-upload>
    </el-tab-pane>
     <el-tab-pane label="商品内容" name="4">
         <!-- 富文本编辑器 -->
<quill-editor   v-model="addForm.goods_introduce"></quill-editor>
 <el-button type="primary" class="addbtn" @click="add">添加商品</el-button>
     </el-tab-pane>
    
  </el-tabs>
  </el-form>
    </el-card>
    <!-- 图片预览 -->
    <el-dialog
  title="提示"
  :visible.sync="imgDialogVisible"
  width="50%"
  >
    <img :src="previewPath" alt="" class="preViewImg">
 
</el-dialog>
    </div>
</template>
<script>
    import _ from 'lodash'
export default {
    data(){
        return {
            //进度条
            activeIndex:'0',
            //添加商品对象
            addForm:{
                goods_name:'',
                goods_price:0,
                goods_weight:0,
                goods_number:0,
                //商品分类数组
                goods_cat:[],
                //图片数组
                    pics:[],
                    //商品详情
                    goods_introduce:'',
                    attrs:[]
            },
            addFormRules:{
                goods_name:[{required:true,message:'请输入商品名称',trigger:'blur'}],
                 goods_price:[{required:true,message:'请输入商品价格',trigger:'blur'}],
                  goods_weight:[{required:true,message:'请输入商品重量',trigger:'blur'}],
                   goods_number:[{required:true,message:'请输入商品数量',trigger:'blur'}],
                    goods_cat:[{required:true,message:'请选择商品分类',trigger:'blur'}]
            },
            catelist:[],
            //商品分类级联器配置
            cateProps:{
                expandTrigger: 'hover' ,
                label:'cat_name',
                value:'cat_id',
                children:'children'
            },
            //动态数据
            manyTableData:[],
            //静态属性
            onlyTableData:[],
            heardersObj:{
                Authorization : window.sessionStorage.getItem('token')
            },
        previewPath:'',
        //预览对话框
        imgDialogVisible:false

            
        }
    },created(){
        this.getCateList()
    }
    ,methods:{
        //获取商品分类
       async getCateList(){
   const {data:res} =await   this.$http.get('categories')
   if(res.meta.status!==200){
       return this.$message.error('获取商品分类失败')
   }
   this.catelist=res.data
  console.log(this.catelist);
        },
        //级联器触发
        handleChange(){
            console.log(this.addForm.goods_cat);
            if(this.addForm.goods_cat.length!==3){
                this.addForm.goods_cat=[]
            }
        },
        beforeTableave(activeName,oldActiveName){
            if(oldActiveName==='0' && this.addForm.goods_cat.length!==3){
                this.$message.error('请先选择商品分类')
                return false
            }
        },
      async  tabclicked(){
          console.log(this.cateId);
            if(this.activeIndex==='1'){
       const{data:res} =  await  this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'many'}})
       console.log(res.data);
            if(res.meta.status!==200){
                return this.$message.error('获取动态数据失败')
            }
           res.data.forEach(item=>item.attr_vals=item.attr_vals.length===0?[]:item.attr_vals.split(' '))
            this.manyTableData=res.data

            
            }else if(this.activeIndex==='2'){
                 const{data:res} =  await 
                  this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'only'}})

                    if(res.meta.status!==200){
                return this.$message.error('获取静态数据失败')
            }
            console.log(res.data);
            this.onlyTableData=res.data
            }

        },
        //处理图片预览
        handlePreview(file){
this. previewPath=file.response.data.url
this.imgDialogVisible=true
        },
        //移除图片的操作
        handleRemove(file){
            //获取临时路径，找索引值
            const filePath=file.response.data.tem_path
      const i=  this.addForm.pics.findIndex(x=>x.pic===filePath)
      this.addForm.pics.splice(i,1)
        },
        //监听图片上传成功的事件
        handleSuccess(response){
               //1.拼接 2push
            const picInfo={pic:response.data.tem_path}
            this.addForm.pics.push(picInfo) 
        },
        //添加
        add(){
            this.$refs.addFormRef.validate( async valid=>{
                if(!valid){
                    return this.$message.error('请填写必要的的表单项！')
                }
                //验证通过，执行了
                //深拷贝
                const form  = _.cloneDeep(this.addForm)
            form.goods_cat=form.goods_cat.join(',')
            //处理动态参数
            this.manyTableData.forEach(item=>{
                const newInfo={attr_id:item.attr_id,
                                attr_vals:item.attr_vals}
                    this.addForm.attrs.push(newInfo)
            })
            //处理静态
            this.onlyTableData.forEach(item=>{
                   const newInfo={attr_id:item.attr_id,
                                attr_vals:item.attr_vals}
                     this.addForm.attrs.push(newInfo)
            })
            form.attrs=this.addForm.attrs
            console.log(form);
            //商品名称必须唯一
    const {data:res} =  await  this.$http.post('goods',form)
    console.log(res);
    if(res.meta.status!==201){
        return this.$message.error('添加失败')
    }
    this.$message.success('添加商品成功')
    this.$router.push('/goods')
            })
        }
        
        
    },
    computed:{
        cateId(){
            if(this.addForm.goods_cat.length===3){
                return this.addForm.goods_cat[2]
            }
            return null
        }
    }
}
</script>
<style lang="less" scoped>
.preViewImg{
    width: 100%;
}
</style>